High temperature resistant compound gel sealing channeling agent and preparation method thereof

The invention discloses a high temperature resistant compound gel sealing channeling agent and a preparation method thereof, the high temperature resistant compound gel sealing channeling agent comprises the following components in parts by weight: 85 to 90 parts of water, 0.1 to 0.5 part of polyacrylamide, 0.2 to 0.5 part of a regulator, 1 to 1.5 parts of a gelling agent and 8 to 15 parts of a water soluble silicate. Through use of a formula comprising the polyacrylamide, the regulator, the gelling agent and the water soluble silicate, the compound gel sealing channeling agent is prepared through a specific preparation sequence, the compound gel sealing channeling agent is suitable for 60-300 DEG of heavy oil steam channeling wells, is low in liquidity and viscosity, can effectively enter into the deep formation, is controllable in gelling time and high in gel strength, and has the advantages of high temperature resistance, high sealing channeling rate and the like.